Steam won't open

[u/Longjumping_Ad4135]

I was using the Steam app to play a game less than an hour ago, and I decided to play something else, but I needed to change the account. After trying to change the account, the Steam app just stopped opening. It won't get past the initial login stage in the picture; the app just closes. I've even tried reinstalling Steam, but nothing works; it's the same issue. Does anyone know how to fix this issue? I know it's not a network issue either.